/**
 * @license Copyright (c) 2003-2023, CKSource Holding sp. z o.o. All rights reserved.
 * For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
 */
/**
 * @module table/tableediting
 */
import { Plugin } from 'ckeditor5/src/core';
import upcastTable, { ensureParagraphInTableCell, skipEmptyTableRow, upcastTableFigure } from './converters/upcasttable';
import { convertParagraphInTableCell, downcastCell, downcastRow, downcastTable } from './converters/downcast';
import InsertTableCommand from './commands/inserttablecommand';
import InsertRowCommand from './commands/insertrowcommand';
import InsertColumnCommand from './commands/insertcolumncommand';
import SplitCellCommand from './commands/splitcellcommand';
import MergeCellCommand from './commands/mergecellcommand';
import RemoveRowCommand from './commands/removerowcommand';
import RemoveColumnCommand from './commands/removecolumncommand';
import SetHeaderRowCommand from './commands/setheaderrowcommand';
import SetHeaderColumnCommand from './commands/setheadercolumncommand';
import MergeCellsCommand from './commands/mergecellscommand';
import SelectRowCommand from './commands/selectrowcommand';
import SelectColumnCommand from './commands/selectcolumncommand';
import TableUtils from '../src/tableutils';
import injectTableLayoutPostFixer from './converters/table-layout-post-fixer';
import injectTableCellParagraphPostFixer from './converters/table-cell-paragraph-post-fixer';
import tableHeadingsRefreshHandler from './converters/table-headings-refresh-handler';
import tableCellRefreshHandler from './converters/table-cell-refresh-handler';
import '../theme/tableediting.css';
/**
 * The table editing feature.
 */
export default class TableEditing extends Plugin {
    /**
     * @inheritDoc
     */
    static get pluginName() {
        return 'TableEditing';
    }
    /**
     * @inheritDoc
     */
    static get requires() {
        return [TableUtils];
    }
    /**
     * @inheritDoc
     */
    constructor(editor) {
        super(editor);
        this._additionalSlots = [];
    }
    /**
     * @inheritDoc
     */
    init() {
        const editor = this.editor;
        const model = editor.model;
        const schema = model.schema;
        const conversion = editor.conversion;
        const tableUtils = editor.plugins.get(TableUtils);
        schema.register('table', {
            inheritAllFrom: '$blockObject',
            allowAttributes: ['headingRows', 'headingColumns']
        });
        schema.register('tableRow', {
            allowIn: 'table',
            isLimit: true
        });
        schema.register('tableCell', {
            allowContentOf: '$container',
            allowIn: 'tableRow',
            allowAttributes: ['colspan', 'rowspan'],
            isLimit: true,
            isSelectable: true
        });
        // Figure conversion.
        conversion.for('upcast').add(upcastTableFigure());
        // Table conversion.
        conversion.for('upcast').add(upcastTable());
        conversion.for('editingDowncast').elementToStructure({
            model: {
                name: 'table',
                attributes: ['headingRows']
            },
            view: downcastTable(tableUtils, {
                asWidget: true,
                additionalSlots: this._additionalSlots
            })
        });
        conversion.for('dataDowncast').elementToStructure({
            model: {
                name: 'table',
                attributes: ['headingRows']
            },
            view: downcastTable(tableUtils, {
                additionalSlots: this._additionalSlots
            })
        });
        // Table row conversion.
        conversion.for('upcast').elementToElement({ model: 'tableRow', view: 'tr' });
        conversion.for('upcast').add(skipEmptyTableRow());
        conversion.for('downcast').elementToElement({
            model: 'tableRow',
            view: downcastRow()
        });
        // Table cell conversion.
        conversion.for('upcast').elementToElement({ model: 'tableCell', view: 'td' });
        conversion.for('upcast').elementToElement({ model: 'tableCell', view: 'th' });
        conversion.for('upcast').add(ensureParagraphInTableCell('td'));
        conversion.for('upcast').add(ensureParagraphInTableCell('th'));
        conversion.for('editingDowncast').elementToElement({
            model: 'tableCell',
            view: downcastCell({ asWidget: true })
        });
        conversion.for('dataDowncast').elementToElement({
            model: 'tableCell',
            view: downcastCell()
        });
        // Duplicates code - needed to properly refresh paragraph inside a table cell.
        conversion.for('editingDowncast').elementToElement({
            model: 'paragraph',
            view: convertParagraphInTableCell({ asWidget: true }),
            converterPriority: 'high'
        });
        conversion.for('dataDowncast').elementToElement({
            model: 'paragraph',
            view: convertParagraphInTableCell(),
            converterPriority: 'high'
        });
        // Table attributes conversion.
        conversion.for('downcast').attributeToAttribute({ model: 'colspan', view: 'colspan' });
        conversion.for('upcast').attributeToAttribute({
            model: { key: 'colspan', value: upcastCellSpan('colspan') },
            view: 'colspan'
        });
        conversion.for('downcast').attributeToAttribute({ model: 'rowspan', view: 'rowspan' });
        conversion.for('upcast').attributeToAttribute({
            model: { key: 'rowspan', value: upcastCellSpan('rowspan') },
            view: 'rowspan'
        });
        // Define the config.
        editor.config.define('table.defaultHeadings.rows', 0);
        editor.config.define('table.defaultHeadings.columns', 0);
        // Define all the commands.
        editor.commands.add('insertTable', new InsertTableCommand(editor));
        editor.commands.add('insertTableRowAbove', new InsertRowCommand(editor, { order: 'above' }));
        editor.commands.add('insertTableRowBelow', new InsertRowCommand(editor, { order: 'below' }));
        editor.commands.add('insertTableColumnLeft', new InsertColumnCommand(editor, { order: 'left' }));
        editor.commands.add('insertTableColumnRight', new InsertColumnCommand(editor, { order: 'right' }));
        editor.commands.add('removeTableRow', new RemoveRowCommand(editor));
        editor.commands.add('removeTableColumn', new RemoveColumnCommand(editor));
        editor.commands.add('splitTableCellVertically', new SplitCellCommand(editor, { direction: 'vertically' }));
        editor.commands.add('splitTableCellHorizontally', new SplitCellCommand(editor, { direction: 'horizontally' }));
        editor.commands.add('mergeTableCells', new MergeCellsCommand(editor));
        editor.commands.add('mergeTableCellRight', new MergeCellCommand(editor, { direction: 'right' }));
        editor.commands.add('mergeTableCellLeft', new MergeCellCommand(editor, { direction: 'left' }));
        editor.commands.add('mergeTableCellDown', new MergeCellCommand(editor, { direction: 'down' }));
        editor.commands.add('mergeTableCellUp', new MergeCellCommand(editor, { direction: 'up' }));
        editor.commands.add('setTableColumnHeader', new SetHeaderColumnCommand(editor));
        editor.commands.add('setTableRowHeader', new SetHeaderRowCommand(editor));
        editor.commands.add('selectTableRow', new SelectRowCommand(editor));
        editor.commands.add('selectTableColumn', new SelectColumnCommand(editor));
        injectTableLayoutPostFixer(model);
        injectTableCellParagraphPostFixer(model);
        this.listenTo(model.document, 'change:data', () => {
            tableHeadingsRefreshHandler(model, editor.editing);
            tableCellRefreshHandler(model, editor.editing);
        });
    }
    /**
     * Registers downcast handler for the additional table slot.
     */
    registerAdditionalSlot(slotHandler) {
        this._additionalSlots.push(slotHandler);
    }
}
/**
 * Returns fixed colspan and rowspan attrbutes values.
 *
 * @param type colspan or rowspan.
 * @returns conversion value function.
 */
function upcastCellSpan(type) {
    return (cell) => {
        const span = parseInt(cell.getAttribute(type));
        if (Number.isNaN(span) || span <= 0) {
            return null;
        }
        return span;
    };
}
